136194786307 has 4 divisors (see below), whose sum is σ = 136430826376. Its totient is φ = 135958746240.

The previous prime is 136194786283. The next prime is 136194786311. The reversal of 136194786307 is 703687491631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 703687491631 = 97 ⋅7254510223.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136194786307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136194784307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118019169 + ... + 118020322.

It is an arithmetic number, because the mean of its divisors is an integer number (34107706594).

Almost surely, 2^136194786307 is an apocalyptic number.

136194786307 is a deficient number, since it is larger than the sum of its proper divisors (236040069).

136194786307 is an equidigital number, since it uses as much as digits as its factorization.

136194786307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236040068.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 136194786307 in words is "one hundred thirty-six billion, one hundred ninety-four million, seven hundred eighty-six thousand, three hundred seven".